Intensification of maize-legume based systems in the semi-arid areas of Tanzania to increase farm productivity and improve farming natural resource base - Ganga Rao, N.V.P.R.; Kimaro, Anthony A.; Makumbi, Dan; Mponda, O.; Msangi, R.; Rubanza, C.D.K.; Seetha, A.; Swai, E.; Okori, Patrick (International Crops Research Institute for the Semi-Arid Tropics, 2013)